import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class Main{
    public static void main(String[] args){

        try {
            UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception e) {
            System.exit(1);
        }

        // opprette et vindu
        JFrame vindu = new JFrame();
        vindu.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);


        
        // sette ting inn i vinduet




        // vise vinduet
        vindu.pack();
        vindu.setLocationRelativeTo(null);  // oppretter vinduet i middten av skjermen
        vindu.setVisible(true);
    }
}